If you wanted to measure parallaxes of stars, would it be better to make the observations...
If you wanted to measure parallaxes of stars, would it be better to make the observations from a satellite in the same orbit as Mercury or a satellite in the same orbit as Mars? Why? Illustrate your answer with a diagram.
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If you wanted to measure parallaxes of stars, would it be better
to make the observations...
If you wanted a material to absorb radiatio which would be better, zine oxide or sodium...
If you wanted a material to absorb radiatio which would be better, zine oxide or sodium fluoride? Briefly explain why
A geostationary orbit is one in which a satellite orbits the Earth (in a circular orbit)...
A geostationary orbit is one in which a satellite orbits the Earth (in a circular orbit) in the same time as it takes the Earth to make one full rotation with respect to the stars. a) Given the mass of the Earth, calculate the distance of a geostationary satellite from the center of the Earth. b) If you were standing on the equator with the geostationary satellite at your zenith, how long would it take to receive a radio signal?...
On Earth, stars and planets seem to disappear at dawn and then reappear at dusk. Where...
On Earth, stars and planets seem to disappear at dawn and then
reappear at dusk. Where are they during daylight hours?
also answer A3- A7 thanks
Al. On Earth, stars and planets see Where are they during daylight hours? Barth, stars and planets seem to disappear at dawn and then reappear at dusk. a) in what manner are the positions of the planets geometrically restricted in the night sky of Earth? b) In what ways are the possible locations of...
1. Ifyou wanted to make a 4 M NaCl solution and you wanted a full Liter...
1. Ifyou wanted to make a 4 M NaCl solution and you wanted a full Liter of it, how would you make it? Describe all of the steps. (Remember from lab, molecular weight of NaCl is 58.44) 2. Now describe how you would dilute this 4 MNaCl solution by a 1:10 dilution -how would you do this? Again, make 1 Liter. 3. Suppose you wanted a 2: 50 dilution of a stock solution, but you wanted 200 mL of it....
JUST NEED PART C, A AND B ARE FOR REFERENCE A)Suppose you wanted to make a...
JUST NEED PART C, A AND B ARE FOR REFERENCE A)Suppose you wanted to make a buffer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If the final solution was 0.17 M in KH2PO4, what concentration of Na2HPO4 would you need? (pKa for H3PO4, H2PO4−, and HPO2−4 are 2.14, 6.86, and 12.40, respectively.) (answer 0.234) B)Now assume you wish to make a buffer at the same pH, using the same substances, but want the total phosphate molarity ([HPO42−]+[H2PO4−]) to equal...
You are given the follow information: You need to apply k-means clustering,Your dataset has 1,000 observations,...
You are given the follow information: You need to apply k-means clustering,Your dataset has 1,000 observations, Your dataset has 57 features, K=2 Answer the following questions How are the initial centroids selected? How many clusters will be produced? What measure is used to evaluate the quality of the clusters? For the evaluation measure, do higher or lower values indicate better clusters? Why?
3. Scale model (15 points). Suppose we wanted to make a scale model of the Earth...
3. Scale model (15 points). Suppose we wanted to make a scale model of the Earth and the Moon, in which the Earth was the size of an exercise ball (-65 cm in diameter) a) (5pt) How far (in m) from the center of the Earth would the center of the Moon be on this b) (5pt) What would be the diameter (in cm) of the Moon on this scale? scale? c) (5pt) The orbit of Ex Alta-1 (cubesat built...
Suppose you wanted to measure the frequency of a note played by a piano and sensed...
Suppose you wanted to measure the frequency of a note played by a piano and sensed from a microphone connected/viewed on an oscilloscope. Answer the following True/False questions with a brief explanation. a. True/False: To measure the frequency, the vertical scale of the oscilloscope would be of more use than the horizontal scale. b. True/False: Since the note is played for a short time period, we should set the triggering to "Single" rather than "Run". c. True/False: If the signal...
HD209458b was discovered in 1999, becoming the first exoplanet to be discovered using the transit method:...
HD209458b was discovered in 1999, becoming the first exoplanet to be discovered using the transit method: this planet’s orbit is oriented just right, so that it regularly passes in front of its star, as seen from Earth. When this happens, it blocks out a portion of the star’s light. If astronomers notice the star’s brightness dipping for a short time over and over with a consistent period, it suggests a planet is responsible. Further observations of the star’s Doppler shift...
please make sure you read the utility function Consider the Isle of lost 60's sitcom stars....
please make sure you read the utility function
Consider the Isle of lost 60's sitcom stars. Adam once played a campy version of Batman and Eve played a daughter in a large family. Both left Hollywood to live on an island. Since they are the only two on the island they form a very small exchange economy where there are only two goods: food (F) and housing (H). Eve who has the utility Ue (Fe, He Fe He and Adam...
If you wanted a material to absorb radiatio which would be better, zine oxide or sodium fluoride? Briefly explain why
On Earth, stars and planets seem to disappear at dawn and then
reappear at dusk. Where are they during daylight hours?
also answer A3- A7 thanks
Al. On Earth, stars and planets see Where are they during daylight hours? Barth, stars and planets seem to disappear at dawn and then reappear at dusk. a) in what manner are the positions of the planets geometrically restricted in the night sky of Earth? b) In what ways are the possible locations of...
1. Ifyou wanted to make a 4 M NaCl solution and you wanted a full Liter of it, how would you make it? Describe all of the steps. (Remember from lab, molecular weight of NaCl is 58.44) 2. Now describe how you would dilute this 4 MNaCl solution by a 1:10 dilution -how would you do this? Again, make 1 Liter. 3. Suppose you wanted a 2: 50 dilution of a stock solution, but you wanted 200 mL of it....
3. Scale model (15 points). Suppose we wanted to make a scale model of the Earth and the Moon, in which the Earth was the size of an exercise ball (-65 cm in diameter) a) (5pt) How far (in m) from the center of the Earth would the center of the Moon be on this b) (5pt) What would be the diameter (in cm) of the Moon on this scale? scale? c) (5pt) The orbit of Ex Alta-1 (cubesat built...
please make sure you read the utility function
Consider the Isle of lost 60's sitcom stars. Adam once played a campy version of Batman and Eve played a daughter in a large family. Both left Hollywood to live on an island. Since they are the only two on the island they form a very small exchange economy where there are only two goods: food (F) and housing (H). Eve who has the utility Ue (Fe, He Fe He and Adam...
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